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Alex17521 [72]
3 years ago
7

Una persona observa en un ángulo de 54° lo alto que es un edificio; si la persona mide 1,72 metros y está ubicada a 18 metros de

la base del edificio.
a) cuál es la altura en metros del edificio

Mathematics
1 answer:
bazaltina [42]3 years ago
3 0

Answer:

 h=26.49m

Step-by-step explanation:

First, take a look at the picture I attached you. It is a drawing which represent the problem.

As you can see from the picture the building height h would be the sum of the person's height plus the length of the side a of the triangle:

h=1,72m+a

There are many ways to solve this problem, however I believe that the easiest one is using tangent identity which states:

tan(\theta) =\frac{opposite}{adjacent}

Hence:

tan(54)=\frac{a}{18}

Solving for a:

a=tan(54)*18=24.77487457\approx24.77m

So the building height is:

h=1.72+24.77=26.49487457\approx26.49m

<u><em>Translation:</em></u>

Primero, mira la imagen que te adjunté. Es un dibujo que representa el problema.

Como puede ver en la imagen, la altura h del edificio sería la suma de la altura de la persona más la longitud del lado a del triángulo:

h=1,72m+a

Hay muchas maneras de resolver este problema, sin embargo, creo que la más fácil es usar la identidad de la tangente que establece:

tan(\theta) =\frac{opuesto}{adyacente}

Por lo tanto:

tan(54)=\frac{a}{18}

Resolviendo para a:

a=tan(54)*18=24.77487457\approx24.77m

Entonces la altura del edificio es:

h=1.72+24.77=26.49487457\approx26.49m

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